this post was submitted on 05 Nov 2024
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Science Memes

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[–] anarchrist@lemmy.dbzer0.com 46 points 3 weeks ago (9 children)

Fuck I thought that was an absolute factorial.

[–] jaybone@lemmy.world 7 points 3 weeks ago (8 children)

Aren’t all factorials absolute factorials?

[–] driving_crooner@lemmy.eco.br 14 points 3 weeks ago* (last edited 3 weeks ago) (6 children)

Introducing, the signed factorial: ¡n! = n × -(n-1) × (n-2) x -(n-3) x ... x (-1)^(n-2)(2) ×(-1)^(n-1)(1)

[–] kittehx@lemmy.blahaj.zone 8 points 3 weeks ago* (last edited 3 weeks ago) (1 children)

I'd prefer an alternative definition that starts with the base case ¡0! = 1, and then for n > 0 we define ¡n! = n * -¡(n-1)!

[–] jaybone@lemmy.world 3 points 3 weeks ago (1 children)

How are you going to flip the signs though?

[–] kittehx@lemmy.blahaj.zone 5 points 3 weeks ago

oop there was a real stupid typo where I forgot the minus sign lmao

it's fixed now

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